Primary CNS lymphoma (PCNSL) is rare malignant B cell lymphoid tumor of brain which
predominantly occurs in supratentorial region in periventricular location. Majority
of PCNSL are of DLBCL type and idiopathic in etiology. Here we are reporting a case
of primary CNS lymphoma, DLBCL involving extremely uncommon intraventricular location.
Central neurocytoma, subependymal giant cell astrocytoma, choroid plexus tumors and
meningiomas are the common diagnosis at this site. Aim of reporting this case is to
bring awareness of unusual intraventricular location of primary CNS lymphoma which
should be kept in mind before considering gross total excision of lesion.
Key-words:
Primary CNS lymphoma - Intraventricular lymphoma - DLBCL
